20145403325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1\times {\mathrm{1549}}^1$

素因数の和:2078

約数の個数: 48

約数和(自身を含む): 26901849600

約数和(自身を除く): 6756446275

約数列:

[1, 5, 17, 25, 71, 85, 355, 425, 431, 1207, 1549, 1775, 2155, 6035, 7327, 7745, 10775, 26333, 30175, 30601, 36635, 38725, 109979, 131665, 153005, 183175, 520217, 549895, 658325, 667619, 765025, 1869643, 2601085, 2749475, 3338095, 9348215, 11349523, 13005425, 16690475, 46741075, 47400949, 56747615, 237004745, 283738075, 805816133, 1185023725, 4029080665, 20145403325]

約数ペア:

[(1, 20145403325), (5, 4029080665), (17, 1185023725), (25, 805816133), (71, 283738075), (85, 237004745), (355, 56747615), (425, 47400949), (431, 46741075), (1207, 16690475), (1549, 13005425), (1775, 11349523), (2155, 9348215), (6035, 3338095), (7327, 2749475), (7745, 2601085), (10775, 1869643), (26333, 765025), (30175, 667619), (30601, 658325), (36635, 549895), (38725, 520217), (109979, 183175), (131665, 153005)]